Android - OnClick Listener在一个单独的类 [英] Android - OnClick Listener in a separate class

问题描述

是否可以创建一个辅助类来保存OnClick侦听器？没有在Activity类中创建含义？

Is it possible to make a secondary class to hold the OnClick Listener? Meaning not being created in the Activity class?

我只是发现将OnClick监听器放在主活动类中只是凌乱，我宁愿将它们放在单独的类中。感谢

I just find that putting OnClick listeners in the main activity class is just messy and I would rather have them in separate classes. Thanks

推荐答案

当然可以。只需创建一个实现 View.OnClickListener 的类，并将其设置为 View 。例如：

Sure, that's possible. Just create a class that implements View.OnClickListener and set that as listener to the View. For example:

public class ExternalOnClickListener implements View.OnClickListener {

    public ExternalOnClickListener(...) {
        // keep references for your onClick logic 
    }

    @Override public void onClick(View v) {
        // TODO: add code here
    }

}

然后将上面类的实例设置为listener ：

And then set an instance of above class as listener:

view.setOnClickListener(new ExternalOnClickListener(...));

参数化构造函数是可选的，但很可能你需要传递一些东西， onClick（...）逻辑工作。

The parameterized constructor is optional, but it's very likely you'll need to pass something through to actually make your onClick(...) logic work on.

匿名实现类通常更容易使用。只是一个想法。

Implementing a class anonymously is generally easier to work with though. Just a thought.

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